Structure; Power Train For Traveling System; Hydrostatic Transmission (Hst) - wsm STW37 Workshop Manual

STW34, STW37, STW40, WSM

2. POWER TRAIN FOR TRAVELING SYSTEM

[1] HYDROSTATIC TRANSMISSION (HST)

(1) Structure

Hydrostatic transmission
displacement piston pump, fixed displacement piston
motor, charge pump and valve system.
(1) Input Shaft
(2) Neutral Valve (Reverse)
(3) Neutral Valve (Forward)
(4) Drain Port
(5) Pressure Check Port Plug
(Forward)
(6) Check and High Pressure
Relief Valve (Forward)
(7) Trunnion Shaft
(8) Case Relief Valve
(9) Pressure Check Port Plug
(Reverse)
(10) Check and High Pressure
Relief Valve (Reverse)
3-M2
TRANSMISSION
consists of variable
(11) Hose Joint (for PTO Clutch)
(12) Charge Oil Inlet
(13) Accumulator
(for PTO Clutch)
(14) Output Shaft
(15) Oil Exit (for PTO Clutch)
(16) Case
(17) Variable Displacement
Piston Pump
(18) Fixed Displacement Piston
Motor
(19) Port Block
(20) Charge Relief Valve
9Y1211109TRM0002US0
KiSC issued 11, 2014 A